<template>
  <div>
    <header class="login-header">
      <div class="container m-top-20">
        <h1 class="logo">
          <RouterLink to="/">小兔鲜</RouterLink>
        </h1>
        <RouterLink class="entry" to="/">
          进入网站首页
          <i class="iconfont icon-angle-right"></i>
          <i class="iconfont icon-angle-right"></i>
        </RouterLink>
      </div>
    </header>
    <section class="login-section">
      <div class="wrapper">
        <nav>
          <a href="javascript:;">账户登录</a>
        </nav>
        <div class="account-box">
          <div class="form">
            <!-- ref 不加 :  这个问题困扰我得半个小时 -->
            <el-form ref="formRef"
                     :model="form"
                     :rules="rules"
                     label-position="right" label-width="60px"
                     status-icon>
              <el-form-item prop="account" label="账户"> <!-- 指定表单域的校验字段名 -->
                <el-input v-model="form.account"/> <!-- 双向绑定 -->
              </el-form-item>
              <el-form-item prop="password" label="密码">
                <el-input v-model="form.password"/>
              </el-form-item>
              <el-form-item prop="agree" label-width="22px">
                <el-checkbox v-model="form.agree" size="large">
                  我已同意隐私条款和服务条款
                </el-checkbox>
              </el-form-item>
              <el-button @click="doLogin" size="large" class="subBtn">点击登录</el-button>
            </el-form>
          </div>
        </div>
      </div>
    </section>

    <footer class="login-footer">
      <div class="container">
        <p>
          <a href="javascript:;">关于我们</a>
          <a href="javascript:;">帮助中心</a>
          <a href="javascript:;">售后服务</a>
          <a href="javascript:;">配送与验收</a>
          <a href="javascript:;">商务合作</a>
          <a href="javascript:;">搜索推荐</a>
          <a href="javascript:;">友情链接</a>
        </p>
        <p>CopyRight &copy; 小兔鲜儿</p>
      </div>
    </footer>
  </div>
</template>

<script setup>
import { ref } from 'vue'
import { useUserStore } from "@/stores/userStore.js";
import { ElMessage } from 'element-plus'
import 'element-plus/theme-chalk/el-message.css'
import router from "@/router/index.js";

// 1. 准备表单对象
const form = ref({
  account: '',
  password: '',
  agree: true
})
// 2. 准备规则对象
const rules = {
  account: [
    {
      required: true,
      message: '请输入用户名',
      trigger: 'blur'
    }
  ],
  password: [
    {
      required: true,
      message: '请输入密码',
      trigger: 'blur',
    }, {
      min: 6,
      max: 14,
      message: '密码长度在6-14个字符之间',
      trigger: 'blur'
    }
  ],
  agree: [
    {
      validator: (rule, value, callback) => {
        if (!value) {
          callback(new Error('请先同意隐私条款和服务条款'))
        } else {
          callback()
        }
      },
    }
  ]
}
// 统一做form表单内容校验
const formRef = ref(null);

const doLogin = () => {
  const {account, password} = form.value
  const userStore = useUserStore();
  formRef.value.validate(async valid => {
    // 所有校验都通过 valid 才为 true
    // 以 valid 为判断条件，如果为 true 才能进行登录
    if (valid) {
      // 发送请求登录代码
      await userStore.getUserInfo({account, password})
      .then(() => {
        if (userStore.userInfo != null) {
          ElMessage({
            message: '登录成功',
            type: 'success',
          })
          // 跳转首页
          router.replace({path: '/'})
        }
      })
    }
  })
}

</script>

<style scoped lang="scss">
div {
  .login-header {
    background: #fff;
    border-bottom: 1px solid #e4e4e4;

    .container {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
    }

    .logo {
      width: 200px;

      a {
        display: block;
        height: 132px;
        width: 100%;
        text-indent: -9999px;
        background: url("@/assets/images/logo.png") no-repeat center 18px / contain;
      }
    }

    .sub {
      flex: 1;
      font-size: 24px;
      font-weight: normal;
      margin-bottom: 38px;
      margin-left: 20px;
      color: #666;
    }

    .entry {
      width: 120px;
      margin-bottom: 38px;
      font-size: 16px;

      i {
        font-size: 14px;
        color: $xtxColor;
        letter-spacing: -5px;
      }
    }
  }

  .login-section {
    background: url('@/assets/images/login-bg.png') no-repeat center / cover;
    height: 488px;
    position: relative;

    .wrapper {
      width: 380px;
      background: #fff;
      position: absolute;
      left: 50%;
      top: 54px;
      transform: translate3d(100px, 0, 0);
      box-shadow: 0 0 10px rgba(0, 0, 0, 0.15);

      nav {
        font-size: 14px;
        height: 55px;
        margin-bottom: 20px;
        border-bottom: 1px solid #f5f5f5;
        display: flex;
        padding: 0 40px;
        text-align: right;
        align-items: center;

        a {
          flex: 1;
          line-height: 1;
          display: inline-block;
          font-size: 18px;
          position: relative;
          text-align: center;
        }
      }
    }
  }

  .login-footer {
    padding: 30px 0 50px;
    background: #fff;

    p {
      text-align: center;
      color: #999;
      padding-top: 20px;

      a {
        line-height: 1;
        padding: 0 10px;
        color: #999;
        display: inline-block;

        ~ a {
          border-left: 1px solid #ccc;
        }
      }
    }
  }

  .account-box {
    .toggle {
      padding: 15px 40px;
      text-align: right;

      a {
        color: $xtxColor;

        i {
          font-size: 14px;
        }
      }
    }

    .form {
      padding: 0 20px 20px 20px;

      &-item {
        margin-bottom: 28px;

        .input {
          position: relative;
          height: 36px;

          > i {
            width: 34px;
            height: 34px;
            background: #cfcdcd;
            color: #fff;
            position: absolute;
            left: 1px;
            top: 1px;
            text-align: center;
            line-height: 34px;
            font-size: 18px;
          }

          input {
            padding-left: 44px;
            border: 1px solid #cfcdcd;
            height: 36px;
            line-height: 36px;
            width: 100%;

            &.error {
              border-color: $priceColor;
            }

            &.active,
            &:focus {
              border-color: $xtxColor;
            }
          }

          .code {
            position: absolute;
            right: 1px;
            top: 1px;
            text-align: center;
            line-height: 34px;
            font-size: 14px;
            background: #f5f5f5;
            color: #666;
            width: 90px;
            height: 34px;
            cursor: pointer;
          }
        }

        > .error {
          position: absolute;
          font-size: 12px;
          line-height: 28px;
          color: $priceColor;

          i {
            font-size: 14px;
            margin-right: 2px;
          }
        }
      }

      .agree {
        a {
          color: #069;
        }
      }

      .btn {
        display: block;
        width: 100%;
        height: 40px;
        color: #fff;
        text-align: center;
        line-height: 40px;
        background: $xtxColor;

        &.disabled {
          background: #cfcdcd;
        }
      }
    }

    .action {
      padding: 20px 40px;
      display: flex;
      justify-content: space-between;
      align-items: center;

      .url {
        a {
          color: #999;
          margin-left: 10px;
        }
      }
    }
  }

  .subBtn {
    background: $xtxColor;
    width: 100%;
    color: #fff;
  }
}
</style>